3 Nephi 7:14

And it came to pass in the thirty and first year, that they were divided into tribes, every man according to his family, kindred and friends; nevertheless, they had come to an agreement that they would not go to war one with another; but they were not united as to their laws, and their manner of government, for they were established according to the minds of them which was their chiefs and their leaders. But they did establish very strict laws that one tribe should not trespass against another, insomuch that in some degree they had peace in the land; nevertheless, their hearts were turned from the Lord their God, and they did stone the prophets, and did cast them out from among them.

In the thirty-first year, they were divided into tribes. Every man went with their family, relatives, and friends. But they made an agreement that they would not go to war with each other. Still, they were not united about their laws and their government. Their chiefs and leaders set up the laws the way they wanted them. But they made very strict laws that one tribe should not go against another. So they had some peace in the land. But their hearts were turned away from the Lord their God. They threw stones at the prophets and drove them away.

In the thirty-first year, they remained divided into tribes by family, relatives, and friends. They’d agreed not to go to war with each other, but they hadn’t unified their laws or government—each tribe followed whatever their chiefs and leaders decided. They did establish strict laws against one tribe attacking another, so there was some degree of peace in the land. Still, their hearts had turned away from the Lord their God, and they stoned the prophets and drove them out.